<!DOCTYPE HTML>
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  <title>confirm</title>
  <script type="text/javascript">
    function rec(){
      var mymessage= confirm("你是女士吗？")     ;
      if(mymessage==true)
      {
        document.write("你是女士!");
      }
      else
      {
        document.write("你是男士!");
      }
    }
  </script>
</head>
<body>
<input name="button" type="button" onClick="rec()" value="点击我，弹出确认对话框" />
</body>
</html>